.page-faq {
  --faq-cut: 16px;
  --faq-cut-lg: 26px;
  --faq-gap: clamp(20px, 3vw, 36px);
  --faq-section-y: clamp(46px, 6.4vw, 88px);
  --faq-light-muted: #4B6076;
  --faq-light-line: rgba(10, 21, 32, 0.14);
  display: block;
  color: var(--fog-050);
}

.page-faq [id] {
  scroll-margin-top: calc(var(--header-h) + 18px);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 3.6vw, 40px) 0 clamp(36px, 6vw, 70px);
  background:
    radial-gradient(118% 96% at 94% -12%, rgba(69, 214, 176, 0.16), transparent 58%),
    radial-gradient(92% 78% at -6% 106%, rgba(255, 107, 74, 0.15), transparent 56%),
    var(--abyss-900);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--abyss-600) 20%, var(--abyss-600) 80%, transparent);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: var(--faq-gap);
  margin-top: clamp(18px, 3vw, 32px);
  align-items: start;
}

.page-faq .faq-hero h1 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 4.4vw, 52px);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
  max-width: 15em;
}

.page-faq .faq-hero .lede {
  margin: 18px 0 0;
  max-width: 36em;
  color: var(--fog-200);
  font-size: var(--fs-400);
  line-height: 1.75;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-jump {
  padding: 20px 18px 14px;
  background: rgba(10, 36, 57, 0.68);
  box-shadow: inset 0 0 0 1px rgba(27, 78, 115, 0.8);
  clip-path: polygon(0 0, calc(100% - var(--faq-cut-lg)) 0, 100% var(--faq-cut-lg), 100% 100%, 0 100%);
}

.page-faq .faq-jump__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-100);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fog-400);
}

.page-faq .faq-jump__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-jump__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px dashed rgba(27, 78, 115, 0.75);
  color: var(--fog-200);
  font-size: var(--fs-300);
  line-height: 1.5;
  text-decoration: none;
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  color: var(--coral-300);
  padding-left: 5px;
}

.page-faq .faq-jump__link:focus-visible {
  outline: 2px solid var(--coral-500);
  outline-offset: 2px;
}

.page-faq .faq-jump__list li:last-child .faq-jump__link {
  border-bottom: 0;
}

.page-faq .faq-jump__num {
  flex: none;
  min-width: 2.2em;
  font-family: var(--font-mono);
  font-size: var(--fs-100);
  letter-spacing: 0.06em;
  color: var(--coral-500);
}

/* ---------- 章节骨架 ---------- */

.page-faq .faq-block {
  padding: var(--faq-section-y) 0;
}

.page-faq .section-head {
  display: grid;
  gap: 14px;
  align-items: end;
  margin: 0 0 clamp(24px, 4vw, 40px);
}

.page-faq h2 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.1vw, 34px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.015em;
}

.page-faq .section-head__note {
  margin: 0;
  max-width: 34em;
  color: var(--fog-400);
  font-size: var(--fs-300);
  line-height: 1.75;
}

.page-faq .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-faq .media-frame__caption {
  color: var(--fog-400);
  font-family: var(--font-mono);
  font-size: var(--fs-100);
  letter-spacing: 0.04em;
}

/* ---------- 六栏导览 ---------- */

.page-faq .faq-hub__figure {
  margin: 0 0 clamp(22px, 3.4vw, 34px);
}

.page-faq .faq-hub__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--abyss-600);
  box-shadow: 0 0 0 1px var(--abyss-600);
}

.page-faq .faq-hub__item {
  display: grid;
  gap: 6px;
  padding: 20px 18px;
  background: var(--abyss-800);
  transition: background-color 0.24s var(--ease);
}

.page-faq .faq-hub__item:nth-child(2) {
  background: linear-gradient(150deg, rgba(255, 107, 74, 0.2), rgba(10, 36, 57, 0.94) 64%);
}

.page-faq .faq-hub__num {
  font-family: var(--font-mono);
  font-size: var(--fs-100);
  letter-spacing: 0.16em;
  color: var(--coral-500);
}

.page-faq .faq-hub__name {
  font-family: var(--font-display);
  font-size: var(--fs-500);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.page-faq .faq-hub__desc {
  color: var(--fog-200);
  font-size: var(--fs-300);
  line-height: 1.7;
}

/* ---------- 步骤带 ---------- */

.page-faq .step-rail {
  list-style: none;
  margin: 0;
  padding: 0 0 14px;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(224px, 78%);
  gap: 12px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-faq .step {
  position: relative;
  scroll-snap-align: start;
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 24px 16px 22px;
  background: linear-gradient(165deg, rgba(18, 58, 87, 0.94), rgba(10, 36, 57, 0.94));
  box-shadow: inset 0 0 0 1px rgba(27, 78, 115, 0.85);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-faq .step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: repeating-linear-gradient(90deg, rgba(69, 214, 176, 0.6) 0 6px, transparent 6px 12px);
}

.page-faq .step__num {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: var(--fs-100);
  letter-spacing: 0.14em;
  color: var(--mint-400);
}

.page-faq .step__num::before {
  content: "";
  flex: none;
  width: 7px;
  height: 7px;
  background: var(--mint-400);
  transform: rotate(45deg);
  box-shadow: 0 0 0 3px rgba(69, 214, 176, 0.16);
}

.page-faq .step__text {
  margin: 0;
  color: var(--fog-200);
  font-size: var(--fs-300);
  line-height: 1.72;
}

.page-faq .faq-steps__figure {
  margin: clamp(26px, 4vw, 44px) 0 0;
}

/* ---------- 折叠问答 ---------- */

.page-faq .qfold-list {
  display: grid;
  gap: 14px;
}

.page-faq .qfold {
  background: rgba(10, 36, 57, 0.64);
  box-shadow: inset 0 0 0 1px rgba(27, 78, 115, 0.82);
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, 0 100%);
  overflow: hidden;
}

.page-faq .qfold__summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px clamp(12px, 2vw, 20px);
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  color: var(--fog-050);
  font-size: var(--fs-400);
  font-weight: 600;
  line-height: 1.5;
  transition: color 0.2s var(--ease);
}

.page-faq .qfold__summary::-webkit-details-marker {
  display: none;
}

.page-faq .qfold__summary:hover {
  color: var(--coral-300);
}

.page-faq .qfold__summary:focus-visible {
  outline: 2px solid var(--coral-500);
  outline-offset: -2px;
}

.page-faq .qfold__num {
  font-family: var(--font-mono);
  font-size: var(--fs-200);
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--coral-500);
}

.page-faq .qfold__caret {
  justify-self: end;
  width: 11px;
  height: 11px;
  border-right: 1.5px solid var(--coral-500);
  border-bottom: 1.5px solid var(--coral-500);
  transform: rotate(45deg);
  transition: transform 0.24s var(--ease);
}

.page-faq .qfold[open] .qfold__caret {
  transform: rotate(-135deg);
}

.page-faq .qfold__body {
  margin: 0 14px 14px;
  padding: 16px 18px 18px;
  background: var(--fog-050);
  color: var(--ink-900);
  font-size: var(--fs-300);
  line-height: 1.78;
}

.page-faq .qfold__body p {
  margin: 0;
}

.page-faq .qfold__body ol {
  margin: 10px 0 0;
  padding-left: 1.3em;
}

.page-faq .qfold__body li + li {
  margin-top: 7px;
}

/* ---------- 浅底反白区 ---------- */

.page-faq .faq-light {
  padding: var(--faq-section-y) 0;
  background: var(--fog-050);
  color: var(--ink-900);
}

.page-faq .faq-light h2 {
  color: var(--ink-900);
}

.page-faq .faq-light .eyebrow {
  color: var(--mint-700);
}

.page-faq .faq-light .section-head__note {
  color: var(--faq-light-muted);
}

.page-faq .faq-light a {
  color: var(--mint-700);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-light a:hover,
.page-faq .faq-light a:focus-visible {
  color: var(--coral-500);
}

.page-faq .light-cards {
  display: grid;
  gap: 16px;
}

.page-faq .light-card {
  padding: 22px 20px;
  background: #ffffff;
  box-shadow: 0 1px 2px rgba(10, 21, 32, 0.06), inset 0 0 0 1px var(--faq-light-line);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-faq .light-card__num {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-100);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--coral-500);
}

.page-faq .light-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: var(--fs-500);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--ink-900);
}

.page-faq .light-card p {
  margin: 0;
  color: #22384A;
  font-size: var(--fs-300);
  line-height: 1.78;
}

.page-faq .light-card ul {
  margin: 0;
  padding-left: 1.3em;
  color: #22384A;
  font-size: var(--fs-300);
  line-height: 1.78;
}

.page-faq .light-card li + li {
  margin-top: 8px;
}

.page-faq .light-rule {
  height: 1px;
  margin: clamp(34px, 5vw, 56px) 0;
  border: 0;
  background: linear-gradient(90deg, var(--faq-light-line), rgba(10, 21, 32, 0.02));
}

.page-faq .compat-grid {
  display: grid;
  gap: 16px;
}

.page-faq .light-outro {
  margin: clamp(24px, 3.6vw, 36px) 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--mint-400);
  color: #22384A;
  font-size: var(--fs-300);
  line-height: 1.8;
}

/* ---------- 回访路径对比 ---------- */

.page-faq .return-compare {
  display: grid;
  gap: 12px;
}

.page-faq .path-card {
  padding: 22px 20px;
  background: rgba(10, 36, 57, 0.66);
  box-shadow: inset 0 0 0 1px rgba(27, 78, 115, 0.8);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-faq .path-card--accent {
  background: linear-gradient(150deg, rgba(69, 214, 176, 0.16), rgba(10, 36, 57, 0.92) 62%);
  box-shadow: inset 0 0 0 1px rgba(69, 214, 176, 0.45);
}

.page-faq .path-card__tag {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-100);
  letter-spacing: 0.16em;
  color: var(--fog-400);
}

.page-faq .path-card--accent .path-card__tag {
  color: var(--mint-400);
}

.page-faq .path-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-500);
  font-weight: 600;
  line-height: 1.4;
  color: var(--fog-050);
}

.page-faq .return-compare__delta {
  margin: 0;
  padding: 8px 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: var(--fs-200);
  letter-spacing: 0.12em;
  color: var(--coral-500);
}

.page-faq .faq-tail {
  margin: clamp(22px, 3.4vw, 32px) 0 0;
  max-width: 44em;
  color: var(--fog-200);
  font-size: var(--fs-300);
  line-height: 1.8;
}

.page-faq .faq-tail a {
  color: var(--coral-300);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-tail a:hover,
.page-faq .faq-tail a:focus-visible {
  color: var(--coral-500);
}

/* ---------- 联系面板 ---------- */

.page-faq .help-panel {
  position: relative;
  padding: clamp(24px, 3.6vw, 42px);
  background:
    linear-gradient(140deg, rgba(255, 107, 74, 0.15), rgba(10, 36, 57, 0.94) 60%),
    var(--abyss-800);
  box-shadow: inset 0 0 0 1px rgba(255, 107, 74, 0.32);
  clip-path: polygon(0 0, calc(100% - var(--faq-cut-lg)) 0, 100% var(--faq-cut-lg), 100% 100%, 0 100%);
}

.page-faq .help-panel__grid {
  display: grid;
  gap: 20px;
}

.page-faq .help-panel__label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: var(--fs-100);
  letter-spacing: 0.16em;
  color: var(--fog-400);
}

.page-faq .help-panel__value {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.4vw, 26px);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--fog-050);
  word-break: break-word;
}

.page-faq .help-panel__note {
  margin: 8px 0 0;
  color: var(--fog-400);
  font-size: var(--fs-200);
  line-height: 1.7;
}

.page-faq .help-panel__urgent {
  display: inline-block;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 9px 15px;
  background: var(--sand-100);
  color: var(--ink-900);
  font-size: var(--fs-200);
  font-weight: 600;
  line-height: 1.5;
}

.page-faq .faq-more {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: clamp(26px, 4vw, 40px);
  padding-top: 22px;
  border-top: 1px solid var(--line-soft);
}

/* ---------- 锚点高亮 ---------- */

@keyframes faqFlash {
  0%,
  30% {
    background-color: rgba(69, 214, 176, 0.1);
  }
  100% {
    background-color: transparent;
  }
}

.page-faq .faq-block:target {
  animation: faqFlash 1.4s var(--ease) 1;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq .faq-hub__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-faq .light-cards,
  .page-faq .compat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-faq .help-panel__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(24px, 3.4vw, 44px);
  }
}

@media (min-width: 900px) {
  .page-faq .section-head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    gap: clamp(24px, 4vw, 56px);
  }

  .page-faq .return-compare {
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
    gap: 18px;
  }

  .page-faq .return-compare__delta {
    padding: 0 6px;
    white-space: nowrap;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
    gap: clamp(32px, 5vw, 72px);
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hub__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .step-rail {
    grid-auto-flow: row;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    grid-auto-columns: auto;
    overflow: visible;
    padding-bottom: 0;
    gap: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-block:target {
    animation: none;
  }

  .page-faq .faq-jump__link,
  .page-faq .qfold__summary,
  .page-faq .qfold__caret,
  .page-faq .faq-hub__item {
    transition: none;
  }
}